How to scan to Ipad

I have an HP 3522 all in one printer and my ipad prints to it very well but i dont know how to scan to the ioad from it or if its possible. I have tried all the apps that look like they would scan and they all involve taking a pic and i can do that without an app.

I would like to be able to do that using my HP 3522 and not sure that is possible. Anybody know?

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.